praeposteritas

praepostĕrĭtas, ātis, f. [praeposterus],

• a reversed order, inversion (post class.): si Juno est aër, Graeei nominis praeposte ritate repetita, i. e. by transposing the letters of the words ἀὴρ and Ἥρα, Arn. 3, 118: PARENS AFFLICTVS PRAEPOSTERITATE NATVRAE HVNC FILIVM VNICVM HIC CONDIDI, Inscr. Orell. 4774.